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An accident during a time travel excursion causes Spock to be replaced by an Andorian first officer. To restore the timeline, Spock must travel back to his childhood and make sure he survives a boyhood testing ritual.

Episode Info  

Episode number: 1x2
Production Number: 22003
Airdate: Saturday September 15th, 1973

Director: Hal Sutherland
Writer: D.C. Fontana

Guest Stars
James DoohanJames Doohan
voiced Aleek-Om, Bates, Erikson, Guardian of Forever, Thelin, Vulcan Healer
Majel BarrettMajel Barrett
voiced Amanda Grayson, Grey
Billy Simpson (2)Billy Simpson (2)
voiced Young Spock
Keith SutherlandKeith Sutherland
voiced Young Sepek
Mark LenardMark Lenard
voiced Sarek
Main Cast
William ShatnerWilliam Shatner
voiced Captain James Tiberius Kirk
Leonard NimoyLeonard Nimoy
voiced Commander Spock
DeForest KelleyDeForest Kelley
voiced Dr. Leonard Horatio "Bones" McCoy
James DoohanJames Doohan
voiced Lt. Cmdr. Montgomery "Scotty" Scott, Lt. Arex


The Enterprise delivers a team of historians to the planet of the Guardian of Forever. As two historians monitor the Guardian, Kirk and Spock accompany Historian Erikson to an observation mission to Orion a thousand years in the past. However, when Spock comes through the portal, McCoy doesn't recognize him. Assuming it's a practical joke, the party beams up to the ship only to discover that Scotty doesn't recognize Spock either. However, Kirk has a surprise of his own when he doesn't recognize the First Officer of the Enterprise, Thelin, an Andorian. Only Kirk and Erikson recognize Spock. Erikson goes over a log of their activities in the past but can't find any change that would have caused Spock's disappearance from the timeline. There is no record of a Spock serving in Starfleet, but they locate Spock's father Sarek. He is still an ambassador, but he and his wife Amanda were separated after the death of their seven-year-old son Spock, and Amanda died in a shuttlecraft accident while returning to Earth...

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Episode Notes
This episode earned Star Trek: The Animated Series its Emmy for "Best Children's Programme" in the 1973-74 season.

Episode Quotes
Thelin: This change in the timeline will put you in my place, yet I'm not aggrieved.
Spock: Andorians are not known for their charity.
Thelin: True. A warrior race has few sympathies, but one we do possess is for family. In your time plane, you will live and so will your mother. That is valuable. Live long and prosper in your world, Commander Spock.
Spock: And you in yours, Commander Thelin.

Sarek: My apologies, visitor. I regret you were witness to that unfortunate display of emotion on the part of my son.
Spock: In the family, all is silence. No more will be said of it. Live long and prosper, Sarek of Vulcan.

Sarek: Spock, being Vulcan means following disciplines and philosophies that are difficult and demanding of both mind and body.
Young Spock: Yes, Father.
Sarek: You constantly display your emotions. You have even been seen fighting in the street.
Young Spock: Yes, Father.
Sarek: The time draws near when you will have to decide whether you will follow Vulcan or human philosophy. Vulcan offers much. No war, no crime. Order, logic, and control in place of raw emotions and instinct. Once on the path you choose, you cannot turn back.
Young Spock: Yes, Father.

Young Spock: Thank you for helping me and I-Chaya.
Spock: It was my duty, Spock.
Young Spock: Mother says you should always say thank you.
Spock: The lady Amanda is known for her graciousness.
Young Spock: Do you think I'll ever be able to do that neck pinch as well as you?
Spock: I dare say you will.

Spock: There is some human blood in my family line. It is not fatal.

Healer: You are Spock, son of Sarek, are you not?
Young Spock: Yes, Healer.
Healer: I have heard of you. I have heard of a tendency toward what humans call "practical jokes."
Young Spock: I did that once, two years ago. Healer, I would not call you out unless a life was in danger. Have you ever heard the son of Sarek was a liar?

Young Spock: I wanted only to help I-Chaya. He was my father's before he was mine. To lose him...
Spock: A Vulcan would face such a loss without tears.
Young Spock: How?
Spock: By understanding every life comes to an end when time demands it. Loss of life is to be mourned but only if the life was wasted. I-Chaya's was not.

Young Spock: If you will excuse me now, I have some business to conduct with schoolmates.
Sarek: Business?
Young Spock: A demonstration of the Vulcan neck pinch.

Kirk: I sent the others up to the ship. What happened?
Spock: One small thing was changed this time. A pet died.
Kirk: A pet? Well, that wouldn't mean much in the course of time.
Spock: It might to some.

McCoy: Never mind the chitchat. I've got my medical scanners all set up for a Vulcan. I have to recalibrate every time I run a physical on you, Spock.
Spock: Dr. McCoy, you do not know your good fortune. If the times were different, you would have to recalibrate for an Andorian.
McCoy: What's that supposed to mean? If that was supposed to be a joke, Spock, I have to remind you Vulcans don't tell jokes.
Spock: Times change, Doctor. Times change.

Episode References
First mention of Amanda's maiden name of Grayson.

Other Episode Crew

CreatorGene Roddenberry
ProducerLou Scheimer  |  Norm Prescott
Associate ProducerD.C. Fontana
Story EditorD.C. Fontana
Art DirectorDon Christensen
Supervising DirectorHal Sutherland
Production ManagerRock Benedetto
Executive ConsultantGene Roddenberry
Special EffectsReuben Timmins
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